Adapter compatible with BL1830 lithium-ion battery models: BL1860, BL1850, BL1840, BL1830, BL1820, BL1815, BL1860B, BL1850B, BL1830B. Replaces M18 lithium-ion battery models: M18 XC 48-11-1815, M18B2, M18B4, M18BX, 48-11-1811, 48-11-1815, 48-11-1820, 48-11-1822, 48-11-1828, 48-11-1840, 48-11-1841, 48-11-1850, 48-11-1852, 48-59-181, 48-59-1850. Suitable for use with M18 18V lithium cordless power tools. Maximum initial battery voltage (measured without a load) is 20 volts; rated voltage is 18 volts. This adapter allows compatible lithium-ion batteries to be used with M18 18V cordless power tools, providing extended run-time performance. Color: Black Material: ABS Notice: This adapter is not intended for charging batteries. Do not use it to charge power tool batteries. Use only the original manufacturer's charger for charging. Disconnect the adapter from the battery when not in use for extended periods. Package Contents: 1 x MT20ML battery converter (battery and power tool not included) 1 x English manual Note: Light reflection and display differences may cause slight variations between the product color in images and actual color. Measurement may vary by +/- 1-3 cm.